B31B 2120/502
Construction of rigid or semi-rigid containers: having integral corner posts or reinforcements
Official title: {having integral corner posts or reinforcements}
B31B2120/502 (Construction of rigid or semi-rigid containers: having integral corner posts or reinforcements) appears on 40 US grants and 45 published applications in this corpus.
Search patents in B31B- Granted patents
- 40
- Published applications
- 45
- Assignees
- 32
- Inventors
- 90
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 6 |
| 2015 | 0 | 2 |
| 2016 | 1 | 5 |
| 2017 | 3 | 7 |
| 2018 | 6 | 5 |
| 2019 | 4 | 2 |
| 2020 | 3 | 2 |
| 2021 | 3 | 1 |
| 2022 | 1 | 3 |
| 2023 | 0 | 1 |
| 2024 | 4 | 2 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for realising a blank for boxing one or more articles from a cardboard sheet for packaging, and a relative machine29 Jul 2025US 12,371,206 B2C.M.C. S.P.A.
- Unwinding unit and method for unwinding a strip of heat sealing material for forming boxes from blanks6 May 2025US 12,291,414 B2Emmeci S.P.A.
- Closeable carton28 May 2024US 11,993,428 B2Inno-Pak, LLC
- Crush-tolerant container and blank and method for forming the same2 Apr 2024US RE49,894 E1WestRock Shared Services, LLC
- Flange stabilizer for a shaped article of fiber material, shaped article, method for making a shaped article, and use of a flange stabilizer26 Mar 2024US 11,938,683 B2Technische UniversitäT Dresden
- Arrangement to mount onto a vertical-type automatic adhesive-free corrugated cardboard box machine and box mounting method21 May 2026US 2026/0138349 A1Cartocor S.A
- Foldable Corrugated Paperboard Corner Piece2 Oct 2025US 2025/0304319 A1
- Foldable Corrugated Paperboard Corner Piece28 Nov 2024US 2024/0391643 A1
- A method for realising a blank for boxing one or more articles from a cardboard sheet for packaging, and a relative machine26 Sep 2024US 2024/0317434 A1C.M.C. S.P.A.
- Container forming apparatus and method9 Mar 2023US 2023/0075478 A1WestRock Shared Services, LLC
Most cited
By later US patents
- Foldable container and blank therefor116US 4,056,223 APackaging Corporation of America · 1977
- Automatic set-up carton with corner posts85US 5,588,585 AInland Container Corporation · 1996
- Manufacture of boxes with integrally reinforced walls38US 4,581,005 A1986
- Method for forming a container35US 8,323,165 B2Thiele Technologies, Inc. · 2012
- Horizontal container forming machine23US 5,916,079 ADelaware Capital Formation, Inc. · 1999